MP3 player



FIG. 1 is a perspective view of a MP3 player;

FIG. 2 is a front elevation thereof;

FIG. 3 is a rear elevation thereof, the broken lines are for illustrative purpose only and form no part of the claimed design;

FIG. 4 is a left side elevation thereof;

FIG. 5 is a right side elevation thereof;

FIG. 6 is top plan view thereof; and,

FIG. 7 is a bottom view thereof. 

The ornamental design for a MP3 player, as shown and described. 